In the experiment: Determining Avogadro's Number the values that I've got are Trial 1 Trial 2 Trial
Question:
In the experiment: Determining Avogadro's Number
the values that I've got are
Trial 1 | Trial 2 | Trial 2 | |
Initial mass of Copper electrode (g) | 12.517 | 12.480 | 12.434 |
Final mass of Copper electrode (g) | 12.483 | 12.439 | 12.401 |
Decrease in mass of copper electrode (g) | 0.034 | 0.041 | 0.033 |
Average Current (A) | 0.2901 | 0.3399 | 0.3136 |
Time of current application (s) | 300 | 3000 | 300 |
1. Calculate the total charge in coulombs (C) that passed through the electrolytic cell for each 3 trials
2. Use answer from 1 to calculate the number of electrons in the electrolysis for each 3 trials. (Recall charge of an electron is 1.602x10^-19 coulombs per electron
3. Determine the number of copper atoms lost from the anode in each 3 trials. Remember that the electrolysis process uses two electrons to produce one copper ion.
4. Calculate the number of copper atoms per gram of copper lost at the anode of each 3 trials. Redution of mass from anode is same as the decrease in copper's atomic mass and produced ion's mass. (ignore mass of electron)
5. Calculate the number of atoms in 1 mol of copper for each trial.
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill